Nowadays, hearing aids can last a lifetime. They are “nanocoated”, technology that protects them from harmful external agents. With a little hygiene maintenance, and avoiding water, there is no problem.
It is for this reason that, when buying hearing aids, it must be borne in mind that they will last for several years. Therefore, the investment must be made knowing that they are going to be used every day of every year. In other words, it is preferable for them to be of sufficient quality in guarantee satisfaction with them.